The QFileOpenEvent class provides an event that will be sent when there is a request to open a file or a URL. 更多...
| 头： | #include <QFileOpenEvent> |
| 继承： | QEvent |
| QString | file () const |
| bool | openFile (QFile & file , QIODevice::OpenMode flags ) const |
| QUrl | url () const |
The QFileOpenEvent class provides an event that will be sent when there is a request to open a file or a URL.
文件打开事件会被发送给 QApplication::instance () when the operating system requests that a file or URL should be opened. This is a high-level event that can be caused by different user actions depending on the user's desktop environment; for example, double clicking on an file icon in the Finder on Mac OS X.
此事件仅用于通知请求的应用程序。它可以被安全地忽略。
注意： This class is currently supported for Mac OS X and Symbian only.
返回正在被打开的文件。
打开 QFile 在 file referenced by this event in the mode specified by flags . Returns true if successful; otherwise returns false.
This is necessary as some files cannot be opened by name, but require specific information stored in this event. For example, if this QFileOpenEvent contains a request to open a Symbian data caged file, the QFile could only be opened from the Symbian RFile used in the construction of this event.
该函数在 Qt 4.8 引入。
返回正在被打开的 URL。
该函数在 Qt 4.6 引入。
